Speed-changing mechanism for grain-drills.



PATENTED MAY 29, 1906.

R. o. LIVESAY. SPEED CHANGING MEGHANISM PoR GRAIN DRILLS.

APPLICATION FILED FEB.17,1906.

NITEI) STATES PATENT onirica- ROBERT C. LIVESAY, OF HAMILTON TIONALHARVESTER COMPANY,

SPEED-CHANGING NIECHA NISNI FOR GRAIN-DRILLS.

Application iiledv February 17,

Specification of Letters Patent.

Patented May 29, 1906 1906. vSerial No. 301,553.

To @ZZ whom t may concern:

Beit known that I, ROBERT O. LrvEsAY, a citizen of the United States,residing at Hamilton, in the county of Wentworth and Province ofOntario, Canada, have invented certain new and useful Improvements inSpeed- Changing Mechanism for Grain- Drills, of which the following is aspecification, reference being had to the accompanying drawings, forminga part thereof.

My invention relates to speed-changing mechanism for grain-drills, andis particularly applicable m connection with a fertilizer-distributerwhen used as an attachment for the above class of machines, as shown inPatent No. 788,706, issued May 2, 1905, to` E. J. Corser, the inventionbeing an improvement upon the mechanism therein described, l

the object of the invention being to provide a mechanism for changingthe speed of the distributing devices, having few parts and simply andcheaply constructed. I attain this object by the mechanism illustratedby the accompanying drawings, in which- Figure 1 represents an end view,partly in section, of so much of a grain-drill as is thought sufficientto illustrate the application of my invention. Fig. 2 is a partial planview of the machine-frame and the speedchanging mechanism mountedthereon. Fig. 3 is a sectional elevation of parts thereof. Fig. 4represents a side elevation of the gear-` case and controlling parts,and Fig. 5 is a detail of the clutch mechanism between the disk andsleeve.

Similar reference characters denote similar parts throughout the severalviews.

1 represents a part of the wheel-frame of the machine, 2 one of thecross members thereof, and 3 is the axle upon which the frame issupported.

4 represents the grain-hopper, 5 the fertilizer-hopper, and 6 thegrass-seed hopper, all mounted upon the main frame. I In rear of thehopper is a rock-shaft 7, and a handlever 8 is secured thereto in anyapproved manner, and the detent 9 is operative in combination with thetoothed sector 10 to hold it in any desired position of adjustment, theprimary function of the lever being to rock theshaft 7, and therebyadjust the furrowopeners to a higher or lower plane in the wellknownway.

The mechanism for distributing the grain forms no part of my inventionand may be of any approved form.

11 represents a shaft longitudinally arranged below thefertilizer-hopper, and connected therewith and driven thereby are thedistributers 12, only one being shown.

Secured to the axle 3 is a pinion tatably mounted thereon is a sleeve14, having radially-extending arms 15 and 16 at one end thereof, havingbearings 17 and 18 adapted to receive pinions 19 and 20, meshing withthe fixed pinion 13 upon opposite sides thereof, and rotatably mountedupon the sleeve 14 is a disk 21, having a peripheral internal toothedrim 22, with which the pinions 19 and 20 are in mesh also. The oppositeend of the sleeve 14 is provided with clutch-teeth 23, and sli'dablymounted upon the axle adj acent the sleeve is the sprocket-wheel 24,having at one end of its hub portion clutch-teeth 25, adapted to engagewith the teeth upon the sleeve, and at its opposite end with acounterbore 26, designed to receive one end of a coiled spring 27,surrounding the axle and operative between the wheel 24 and a collar 28,secured to the axle, to hold the two sets of clutch-teeth in operativeengagement. For the purpose of separating the clutch members the sleeve14 and the hub vof the sprocket-l wheel are provided with peripheralflanges 29 and 30, and operative between the flanges is the forked end81 of a bar 32, that has its opposite end connected with a crank 33,secured to the rock-shaft 7, the fork members of the bar havinglaterally-inclined cam-surfaces 34, that operate upon opposite sides ofthe axle to separate the clutch members when moved in one action ofshaft .7 in a well-known Way.

Mounted in laterally-projecting ears and 36, forming part of the disk21, is a sliding bolt 37, having a coiled spring 38 surrounding it andoperative between the ear 36 and the key 39 to slide the bolt radiallytoward the axis of the sleeve in a manner to engage with clutch-teeth 40upon the periphery ofthe sleeve 14 and to cause the disk 21 to revolvewith the sleeve when so engaged.

Secured to the frame member 2 is a stopblock 41, and when the slidingbolt 37 is moved outward it will contact with the block and secure thedisk against rotation, as shown in Figs. 1 and 2, and when in thisposition the ibolt is held against the force of the spring 38 13, andro-.

direction by the rocking IOO by being rotated in its bearings until thekey 39 engages with the longitudinally-projecting ear 42 at one sidethereof, as shown in Figs. 2 and 5. A sprocket-chain 43 connects thesnrocketwheel 24 with the sprocketwheel 44 upon the distributer-shaftand transmits motion thereto. 46 is a gear-cover rotatably mounted uponthe hub of the fixed pinion and is secured to the disk 21 by means ofthe key 47, as shown in Fig. 1.

The device operates in the following manner: The pinion 13 revolves withthe axle and through its engagement with the pinions 19 and 20 willeithercause them to rotate about their bearings on the arms 15 and 16 ofthe sleeve 14 or will cause'the sleeve 14 to revolve in unisontherewith, dependent upon whether the disk 21 is clutched with thesleeve or is held against rotation and unclutched from the sleeve. Withthe disk 21 and sprocketewheel 24 clutched with the sleeve 14 they willall be driven in unison with the fixed pinion 13. When it is desired togive the sprocket-wheel a slower rate of speed, the disk 21 isunclutched from the sleeve 14, and the bolt 37, contacting with thestop-block 41, prevents the disk from rotating, and the pinions 19 and20, being caused to rotate through their engagement with the pinion 13,will, in turn, from their engagement with the teeth upon the rim of thedisk 21, cause the sleeve 14 to rotate upon its axis, but at a reducedspeed proportionate with the number of teeth up'on the xed pinion 13 andthe rim of the disk 21, the gearing comprising a form of what iscommonly called the planetary system. i

What I claim as my invention, and desire to secure by Letters Patent, is

1. A speed-changing mechanism for graindrills comprising, incombination, a driving and a driven shaft, a pinion secured .to thedriving-shaft, a sleeve rotatably mounted on said ldriving-shaft andhaving radially-Drojecting arms, a disk rotatably mounted upon thesleeve and having an internal toothed rim, pinions mounted upon saidarms and meshing with said fixed pinion and said toothed rim, clutchingmechanism operative between said disk and sleeve, and `motion-Atransmitting means connected with said sleeve and said driven shaft. n

2. A speed-changing mechanism for graindrills comprising, incombination, a driving and a driven shaft, a pinion secured to thedriving-shaft, a sleeve rotatably mounted on said driving-shaft andhaving radially-proj ecting arms, a disk rotatably mounted upon thesleeve and having an internal toothed rim, pinions mounted upon saidarms and meshing with said fixed pinion and said toothed rim, clutchingmechanism operative between said disk and sleeve comprising a slidingbolt mounted upon the disk and adapted to engage with-the sleeve, andmotiontransmitting means connectedwith said sleeve and said drivenshaft.

.3. A speed-changing mechanism for graindrills comprising, incombination, adriving and a driven shaft, a pinion secured to thedriving-shaft, a sleeve rotatably mounted on said .driving-shaft andhaving radially-projecting arms, a disk rotatably mounted upon thesleeve and having an internal toothed rim, pinions mounted upon saidarms and meshing with said fixed pinion and said toothed rim, .clutchingmechanism operative between said disk and sleeve and between said ldiskand a iixed part of the machine, means for adjusting said clutchmechanism in a manner. to engage .the disk with said sleeve. or with afixed part of the machine, and motion-transmitting means connected withsaid' sleeve and said driven shaft.

4. A speed-changing mechanism for grainvdrills comprising, inycombination, adriving t 4and a driven shaft, a pinionsecured to thedriving-shaft, a sleeve rotatably mounted on said driving-shaft andhaving radiallypro jecting arms, a disk rotatably mounted upon thesleeve and having an internal toothed rim, pinions mounted upon saidarms and meshing with said iixed pinion and said toothed rim, clutchingmechanism operative vbetween said disk and sleeve and between said diskand a fixed part of the machine comprising a sliding bolt mounted uponsaid disk and adapted to engage with either the sleeve vror a fixed partof the machine, and motionftransmitting. means connected with saidsleeve and said driven shaft.

5. A speed-changing mechanism for graindrills comprising, incombination, a driving and. a driven shaft, a pinion secured to thedriving-shaft, a sleeve rotatably mounted on said driving-shaft andhaving radially-pro liecting arms, a disk rotatably mounted upon saidsleeve and having an internal toothed r-im, pinions mounted upon saidarms and meshing with said fixed `pinion and said toothed rim, clutchingmechanism operative between said disk and sleeve comprising aspringressed boltslidably mounted upon the disk, adapted to engage withone end of the springpressed bolt, and motion-transmitting meansconnected with said sleeve and said driven shaft.

.6. A speed-changing mechanism for graindrills comprising, incombination, a .driving and a driven shaft, a pinion secured to thedriving-shaft, a sleeve rotatably mounted on said driving-shaft andhaving -radiallyprojecting arms, a disk rotatably mounted upon saidsleeve and having an internal toothed rim, pinions mounted upon saidarms and meshing with said fixed pinion and said toothed rim, clutchingmechanism operative between said disk and sleeve and between .said diskand a fixed part of the machine one or more teeth upon the sleeve IOOIIC

comprising a spring-pressed bolt slidably mounted upon said disk, one ormore teeth upon the sleeve adapted to engage with one end of thespring-pressed bolt, means for disengaging said bolt from said sleeveand engaging it with a fixed part of the machine, andmotion-transmitting means connected with said sleeve and said drivenshaft.

7. A speed-changing mechanism for graindrills comprising, incombination, a main frame member, a driving and a driven shaft, a pinionsecured to the driving-shaft, a sleeve rotatably mounted upon saiddriving-shaft and having radially-projecting arms, a disk rotatablymounted upon said sleeve and having an internal toothed rim, pinionsmounted upon said arms and meshing with said fixed pinion and saidtoothed rim, clutching mechanism operative between said disk and sleevecomprising a spring-pressed bolt slidably mounted upon the face of saiddisk and arranged radially relative to the sleeve, one or more teethupon the sleeve adapted to engage with one end of the spring-pressedbolt, a stop-block secured to said frame member, means for disengagingsaid bolt from said sleeve and engaging it with said stop-block, andmotion-transmitting means connected with said sleeve and said drivenshaft.

8. A speed-changing mechanism for graindrills comprising, incombination, a main frame member, a driving and a driven shaft, a pinionsecured to the driving-shaft, a sleeve rotatably mounted upon saiddriving-shaft and having radially-projecting arms, a disk rotatablymounted upon said sleeve and having an internal toothed rim, pinionsmounted upon said arms and meshing with said fiXed pinion and saidinternal toothed rim, clutching mechanism operative between said diskand sleeve comprising a spring-pressed bolt slidably and rotatablymounted in laterallyprojecting ears upon the face of said disk andarranged radially relative to said sleeve, one or more teeth upon thesleeve adapted to engage with one end of the spring-pressed bolt when itis moved in one direction, a stopblock secured to said frame member andadapted to engage with said bolt when it is moved in an oppositedirection, means for adjusting said bolt toward said block, andmotion-transmitting means connected with said sleeve and said drivenshaft.

9. A speed-changing mechanism for graindrills comprising, incombination, a main frame member, a driving and a driven shaft, a pinionsecured to the driving-shaft, a sleeve rotatably mounted upon saiddriving-shaft and having radially-projecting arms, a disk rotatablymounted upon said sleeve and having an internal toothed rim, pinionsmounted upon said arms and meshing with said fixed pinion and saidtoothed rim, clutching mechanism operative between said disk and sleevecomprising a bolt slidably and rotatably mounted in laterally-projectingears integral with said disk, said bolt being arranged radially relativeto said sleeve, one or more teeth upon said sleeve adapted to engagewith one end of said bolt when moved in one direction, alaterally-projecting pin connected with said bolt, a coiled springsurrounding said bolt and operative between one of said ears and saidpin to press the bolt toward the sleeve, an ear arranged at one side ofsaid bolt and adapted to contact with said pin in a manner to hold thebolt in its adjusted position when the bolt is moved longitudinally awayfrom the sleeve and rotated upon its axis.

In witness whereof I hereto afliX my signature in presence of twowitnesses.

` ROBERT C. LIVESAY.

Witnesses:

A. L. JOHNSON,

ARNT W. EssMAN.

